In brief:
Sometimes

If you are trying to get pregnant, and have questions about your cycle, you should see a healthcare provider. Similarly, if you aren't having periods and you did previously, you should get checked out!

In brief:
Sometimes

If you are trying to get pregnant, and have questions about your cycle, you should see a healthcare provider. Similarly, if you aren't having periods and you did previously, you should get checked out!
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In brief:
Unlikely

If your brain isn't signalling for an egg release from your ovary, you won't have a signal for your periods either; that's usually the cause of amenorrhea.

Often it's a hormonal imbalance--Thyroid, Prolactin, LH, FSH, Hcg should be checked. Your doctor can also induce a period as well w/ OCPs. If you've NEVER had a period, you should get an US to make sure you have normal uterus/vagina/ovaries.

In brief:
Unlikely

If your brain isn't signalling for an egg release from your ovary, you won't have a signal for your periods either; that's usually the cause of amenorrhea.

Often it's a hormonal imbalance--Thyroid, Prolactin, LH, FSH, Hcg should be checked. Your doctor can also induce a period as well w/ OCPs. If you've NEVER had a period, you should get an US to make sure you have normal uterus/vagina/ovaries.
Would you like to video or text chat with me?